feat(parser): handle multi-file solutions

tools/challenge-md-parser/challengeSeed-to-data.js

@@ -20,8 +20,6 @@ function defaultFile(lang) {
   };
 }
 function createCodeGetter(key, regEx, seeds) {
-  console.log('seeds');
-  console.log(seeds);
   return container => {
     const {
       properties: { id }
@@ -122,4 +120,5 @@ function createPlugin() {
   };
 }
 
-module.exports = createPlugin;
+exports.challengeSeedToData = createPlugin;
+exports.createCodeGetter = createCodeGetter;

tools/challenge-md-parser/challengeSeed-to-data.test.js

@@ -1,8 +1,9 @@
 /* global describe it expect beforeEach */
-const mockAST = require('./fixtures/challenge-html-ast.json');
-const challengeSeedToData = require('./challengeSeed-to-data');
 const isArray = require('lodash/isArray');
 
+const mockAST = require('./fixtures/challenge-html-ast.json');
+const { challengeSeedToData } = require('./challengeSeed-to-data');
+
 describe('challengeSeed-to-data plugin', () => {
   const plugin = challengeSeedToData();
   let file = { data: {} };

tools/challenge-md-parser/index.js

@@ -9,7 +9,7 @@ const raw = require('rehype-raw');
 const frontmatterToData = require('./frontmatter-to-data');
 const textToData = require('./text-to-data');
 const testsToData = require('./tests-to-data');
-const challengeSeedToData = require('./challengeSeed-to-data');
+const { challengeSeedToData } = require('./challengeSeed-to-data');
 const solutionsToData = require('./solution-to-data');
 
 const processor = unified()

tools/challenge-md-parser/solution-to-data.js

@@ -2,11 +2,15 @@ const visit = require('unist-util-visit');
 const { selectAll } = require('hast-util-select');
 
 const { sectionFilter } = require('./utils');
+const { createCodeGetter } = require('./challengeSeed-to-data');
+
+const solutionRE = /(.+)-solution$/;
 
 function createPlugin() {
   return function transformer(tree, file) {
     function visitor(node) {
       if (sectionFilter(node, 'solution')) {
+        // fallback for single-file challenges
         const solutions = selectAll('code', node).map(
           element => element.children[0].value
         );
@@ -14,6 +18,21 @@ function createPlugin() {
           ...file.data,
           solutions
         };
+        const solutionFiles = {};
+        const codeDivs = selectAll('div', node);
+        const solutionContainers = codeDivs.filter(({ properties: { id } }) =>
+          solutionRE.test(id)
+        );
+        solutionContainers.forEach(
+          createCodeGetter('contents', solutionRE, solutionFiles)
+        );
+
+        file.data = {
+          ...file.data,
+          solutionFiles: Object.keys(solutionFiles).map(
+            lang => solutionFiles[lang]
+          )
+        };
       }
     }
     visit(tree, 'element', visitor);